Activity and Safety of Danvatirsen and Pembrolizumab in HNSCC

Trial details

Who runs it

Flamingo Therapeutics NV

Trial code

NCT05814666

Record updated

30 January 2026

Original description

Open-label, Phase II, randomized, controlled study evaluating the efficacy and safety of danvatirsen in combination with pembrolizumab compared with pembrolizumab alone as first-line treatment of patients with recurrent/metastatic (R/M) HNSCC. Two-thirds of patients will be randomized to receive danvatirsen and pembrolizumab and one-third will be randomized to receive pembrolizumab alone.Read full original descriptionShow less

An Open-Label, Phase II, Randomized, Controlled Study of Danvatirsen Plus Pembrolizumab Compared to Pembrolizumab Alone in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma (HNSCC)

Open-label, Phase II, randomized, controlled study evaluating the efficacy and safety of danvatirsen in combination with pembrolizumab compared with pembrolizumab alone as first-line treatment of patients with recurrent/metastatic (R/M) HNSCC. Two-thirds of patients will be randomized to receive danvatirsen and pembrolizumab and one-third will be randomized to receive pembrolizumab alone.

Inclusion: Must have given written informed consent (signed and dated); Aged ≥18 years at the time of informed consent; Recurrent/metastatic histologically or cytologically proven squamous cell carcinoma of the head and neck that is considered incurable by local therapy. Eligible primary tumor locations are oropharynx, oral cavity, hypopharynx, and larynx; Presence of measurable tumor per RECIST v1.1 criteria; Detectable PD-L1 expression in tumor, defined as CPS ≥1 determined by a FDA or national regulatory agency of the country in which the patient resides.-approved test; Baseline fresh tumor biopsy or archival specimen; ECOG performance status of 0 or 1; Adequate organ function within 10 days of study treatment,; Oxygen saturation on room air ≥92% by pulse oximetry; Females must be non-pregnant and non-lactating and either be postmenopausal or agree to adequate birth control; Males must be surgically sterile or agree to adequate birth control; Has an estimated life expectancy of at least 3 months; Has recovered from all complications or surgery and all toxicities of prior therapy.

Exclusion: Prior therapy for metastatic HNSCC; Has received prior therapy with an anti-programmed death 1 (PD-1), anti PD L1, or anti-programmed death-ligand-2 (PD-L2); Radiation therapy (or other non-systemic therapy) within 2 weeks of Day 1 of study treatment; Known immunodeficiency or receiving systemic steroid therapy that would be the equivalent of >10 mg prednisone daily; Prior allogeneic tissue/solid organ transplant; Has received a live vaccine within 30 days; Treatment with another investigational drug, biological agent, or device within 1 month of screening, or 5 half-lives of investigational agent (if known), whichever is longer; Has disease suitable for local therapy with curative intent; Known autoimmune disease that has required systemic treatment; Has significant cardiovascular disease; Active infection requiring systemic antiviral or antimicrobial therapy; History of (non-infectious) pneumonitis that required steroids or current pneumonitis; History of other malignancies; Active HIV infection except patients who are currently stable on antiretroviral therapy for at least 4 weeks; Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; Treated or untreated parenchymal brain metastases or leptomeningeal disease; Hypersensitivity to any component of danvatirsen or pembrolizumab; Primary tumor of the nasopharynx.

ClinicalTrials.gov NCT05814666